Rock unit

Lewisville

4 dinosaur genera in Omnisaura with fossils from the Lewisville, oldest first. See all rock units.

CaririchniumLeonardi 1984
Footprints and traces143.1–93.9 million years ago
MagnoavipesLee 1997
Footprints and traces132.6–66 million years ago
AmpelognathusTykoski et al. 2023
Bones100.5–93.9 million years ago
ProtohadrosHead 1998
Bones100.5–93.9 million years ago